CA2212482A1 - Roller rocker arm - Google Patents

Roller rocker arm

Info

Publication number
CA2212482A1
CA2212482A1 CA002212482A CA2212482A CA2212482A1 CA 2212482 A1 CA2212482 A1 CA 2212482A1 CA 002212482 A CA002212482 A CA 002212482A CA 2212482 A CA2212482 A CA 2212482A CA 2212482 A1 CA2212482 A1 CA 2212482A1
Authority
CA
Canada
Prior art keywords
sleeve
arm
rocker arm
gas hardening
brazing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002212482A
Other languages
French (fr)
Other versions
CA2212482C (en
Inventor
Andrzej Calka
Anthony G. Sytsma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GENTEK TECHNOLOGIES MARKETING Inc
Original Assignee
Sandco Automotive Ltd.
1109773 Ontario Inc. Dba. Sytsma Consulting
Andrzej Calka
Anthony G. Sytsma
Gentek Technologies Marketing Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sandco Automotive Ltd., 1109773 Ontario Inc. Dba. Sytsma Consulting, Andrzej Calka, Anthony G. Sytsma, Gentek Technologies Marketing Inc. filed Critical Sandco Automotive Ltd.
Publication of CA2212482A1 publication Critical patent/CA2212482A1/en
Application granted granted Critical
Publication of CA2212482C publication Critical patent/CA2212482C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • F01L1/182—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • F01L1/182—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft
    • F01L1/183—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft of the boat type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49295—Push rod or rocker arm making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20582—Levers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20882—Rocker arms

Abstract

The invention provides a rocker arm having a cold formed steel body including parallel side walls and a bearing housing in the form of a sleeve attached to the side walls and defining a through opening to receive needle bearings.
The sleeve has surfaces resistant to gas hardening so that after the arm has been subject to gas hardening only the main body is hardened leaving the sleeve unaffected.
A method of making the rocker arm according to the invention includes preparing a sleeve having a surface which is resistant to gas hardening and which is unaffected by brazing temperatures; attaching the sleeve to the arm by brazing; and gas hardening the completed arm at a temperature less than the brazing temperature.
CA002212482A 1996-08-07 1997-08-01 Roller rocker arm Expired - Fee Related CA2212482C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/693,776 US5730093A (en) 1996-08-07 1996-08-07 Roller rocker arm
US08/693,776 1996-08-07

Publications (2)

Publication Number Publication Date
CA2212482A1 true CA2212482A1 (en) 1998-02-07
CA2212482C CA2212482C (en) 2005-06-14

Family

ID=24786067

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002212482A Expired - Fee Related CA2212482C (en) 1996-08-07 1997-08-01 Roller rocker arm

Country Status (2)

Country Link
US (1) US5730093A (en)
CA (1) CA2212482C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108457714A (en) * 2018-03-17 2018-08-28 潍柴重机股份有限公司 A kind of rocking arm mounting structure

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19833112A1 (en) * 1998-07-23 2000-01-27 Schaeffler Waelzlager Ohg Lever-type cam follower of valve gear of internal combustion engine activates at least one gas exchange valve and comprises two longitudinally extending side walls joined to each other by cross beam
DE19950990A1 (en) * 1999-02-19 2000-08-24 Schaeffler Waelzlager Ohg Rocker lever for valve gear of internal combustion engine has separate oil carrying passage on upper side of cross member connecting side walls and originates from end of oil path from pushrod and leads to end of valve
US6230676B1 (en) 1999-04-23 2001-05-15 Toledo Technologies Inc. Interchangeable rocker arm assembly
US20060157013A1 (en) * 2004-09-29 2006-07-20 Gentek Technologies Marketing, Inc. Method of making a rocker arm
US7287494B2 (en) * 2004-11-10 2007-10-30 Buck Supply Co., Inc. Multicylinder internal combustion engine with individual cylinder assemblies and modular cylinder carrier
US7543558B2 (en) 2004-11-10 2009-06-09 Buck Diesel Engines, Inc. Multicylinder internal combustion engine with individual cylinder assemblies
US7287493B2 (en) * 2004-11-10 2007-10-30 Buck Supply Co., Inc. Internal combustion engine with hybrid cooling system
US8316814B2 (en) 2009-06-29 2012-11-27 Buck Kenneth M Toploading internal combustion engine
DE102012013220A1 (en) * 2012-07-04 2014-01-09 Man Truck & Bus Ag Mounting a rocker arm for a valve train of an internal combustion engine

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2176083A (en) * 1937-05-22 1939-10-17 Toledo Stamping And Mfg Compan Rocker arm
US2272166A (en) * 1937-05-22 1942-02-03 Toledo Stamping And Mfg Compan Rocker arm
US2199914A (en) * 1939-03-31 1940-05-07 Murray Corp Rocker arm
US2345822A (en) * 1941-08-21 1944-04-04 James M Leake Rocker arm
US2338726A (en) * 1942-01-06 1944-01-11 James M Leake Rocker arm
US2529089A (en) * 1948-07-29 1950-11-07 James M Leake Engine rocker arm
US2905160A (en) * 1958-03-06 1959-09-22 Thompson Ramo Wooldridge Inc Rocker arm
US3096749A (en) * 1960-11-25 1963-07-09 Paramount Fabricating Co Rocker arm and method of making the same
US3251350A (en) * 1963-05-20 1966-05-17 Thompson Marion Lee Rocker arm and mounting therefor
US3410366A (en) * 1965-06-14 1968-11-12 John R. Winter Jr. Rocker arm lubrication system
US3621823A (en) * 1969-08-27 1971-11-23 Ford Motor Co Frictionless rocker arm fulcrum assembly
US4245523A (en) * 1975-10-02 1981-01-20 Toledo Stamping & Manufacturing Company Rocker arm
US4796483A (en) * 1987-09-11 1989-01-10 The Henley Group, Inc. Cold-formed rocker arm with cam-contacting roller
US4878463A (en) * 1987-10-01 1989-11-07 The Torrington Company Needle bearing rocker arm assembly
US4825717A (en) * 1988-09-12 1989-05-02 Henley Manufacturing Corporation Rocker arm of the cam-follower type with ribs
US4944257A (en) * 1989-09-27 1990-07-31 Henley Manufacturing Holding Company, Inc. Cold-formed rocker arm with bearing flanges and splash plate
US4940048A (en) * 1989-11-09 1990-07-10 Henley Manufacturing Holding Company, Inc. Boat-type rocker arm with flanges
US5016582A (en) * 1990-10-12 1991-05-21 Henley Manufacturing Holding Company, Inc. Rocker arm
US5048475A (en) * 1991-01-17 1991-09-17 Henley Manufacturing Holding Company, Inc. Rocker arm
US5123384A (en) * 1991-10-21 1992-06-23 Henley Manufacturing Holding Company, Inc. Pedestal-mounted rocker arm with bushing
US5195475A (en) * 1992-05-29 1993-03-23 The Torrington Company Rocker arm assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108457714A (en) * 2018-03-17 2018-08-28 潍柴重机股份有限公司 A kind of rocking arm mounting structure

Also Published As

Publication number Publication date
CA2212482C (en) 2005-06-14
US5730093A (en) 1998-03-24

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed